306 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XV, 



Family V. Pieridae— 



CHARACTERS. — Anterior legs normally developed in both sexes 

 F.W. 2 or more veins stalked or absent. Vein 5 from middle of transverse 

 vein or approximated to 6 at base. H.W. la present. 



TABULATION OF GENERA :- 



1. H.W. without developed prsecostal spur 2 



,» with „ „ „ 5 



2. F.W. 10 free, 6, 7 and 8 stalked (9 absent) 3 



10 out of 8 2 Colias, Fb. 



3. F.W. 5 from middle of the cell 4 



„ 5 approximate to 6 at base 3 Go-nepteryx,. 



Lch. 



4. H.W. cell subtriaugular, 7 from near apex... JTeeias, 



Swainson. 



„ cell ovate, 7 from upper margin 4 Kallidryas, 



Boisd. 



5. F.W. 9 absent 6 



„ 9 present 13 Xeronia, Hb. 



6. Terminal joint of palpi short 7 



„ long ■ 8 



7. H.W. spaces between 5, 6 and 7 subequal ... 5 Ixias, Hb. 



„ 5 and 6 approximate at base 6 Teracolus, Hb^ 



8. F.W. 10 absent 9 



,, present ,,. 10 



9. F.W. 5 and 6 connate , 8 Leptosia, Hb. 



„ 5 and 6 separate at base 11 Delias, Hb. 



10. F.W. 6 and 7 closely approximated at base 7 Hebomoia, Hb. 



,, „ stalked 11 



11. Club of antennae developed 12 



,. „ slight 12 Aporia. Hb. 



12. Costal margin serrate beneath 10 Prioneris. 



M „ smooth Q PiEms,Schrk. 



PHILOGENY:- 



Colias. Leptosia. Delias. 



I I I 



Terias Gonepteryx. Ixias. Terocolus. Pieris. Prioneris. Aporia. 



I J I I ' 1 



Kallidryas. Hebomoia. 



I 

 Eronia. 



I have treated Pieris as a large genus containing a number of species 

 usually separated under several genera which cannot be satisfactorily 

 defined. 



